LSx Exhaust systems.

[soop]

Hey,
Exhaust systems and exhaust notes are always a contentious topic on here, So I thought I might start a thread V8 Specific (Lets face it V6's sound shite regardless ).

I've had a few different exhaust setups, so here goes.

The first, that came with my car.
A Really backyard 3 1/4" single straight through exhaust. No mufflers.
YouTube - VY SS, single 3 1/4" straight through exhaust

X force 2.5" twin system with rear resonator. Drones allot at cruising speed.
YouTube - LS1 Xforce twin 2.5' catback,

Exact same exhaust on my old boy's VX SS. After I removed the craptastic X pipe and replaced with some straight pipe. Has a nice lope around town now, but the cheap mufflers are still thrashy and drone allot. (Ignore the missing tip, mum knocked it off!)
YouTube - VX SS with X pipe deleted

Full pacemaker exhaust system. Tri-y extractors with a 2.5" collector. 2.5" High flow cats, and a twin 2.5" cat back system, It has the V-tex H-pipe fitted as well. No drone at
YouTube - SS pacemaker exhaust, Pacemaker Tri-y extractors.

Hopefully this is of some use to people when decided what they want.

[Kingston_99]

this is my setup:

Difilippo extractors 1 3/4 primaries to 3inch outlet [Stainless], into Difilippo twin 3inch system [Stainless]

if you can afford DF, i would highly recomend it.

my ute doing a drive by:
YouTube - VY SS stainless exhuast

http://www.youtube.com/watch?v=QfOR_FRwpog

[soop]

Sounds good dude

[cpbait]

kingston-99 nice sounding exhaust, that's how v8's should sound.

Soop, your last one gives me a good indication of what i'm looking at sounds like, sounded better quality than some on there as in no muffling from wind noise, etc.

[TA 91 WA]

this is my setup:

Difilippo extractors 1 3/4 primaries to 3inch outlet [Stainless], into Difilippo twin 3inch system [Stainless]

if you can afford DF, i would highly recomend it.

my ute doing a drive by:
YouTube - VY SS stainless exhuast

YouTube - Stainless LS1 exhuast

I love that. I want.

[rayvy]

im getting genie tri-y headers for my vt on friday anyone know what there like for slightly modded ls1's (getting baby cam and head work done i march) i already have a twin 2.5" catback exhaust (x-force) and otrcai and also mafless tune (getting new custom tune when i get the cam and heads done) also would it drone to much or be to loud (legally speaking) if i get the rear muffler cut out at the same time. thanks

[soop]

What is it size of the Primaries on the Genie manifolds?

I HIGHLY recomend you get the "x-pipe" cut out and replaced with straight pipes mate, sounds so so much better then the Xforce does standard.
I'm not a fan of the Xforce over all, but its serious 200% better without that xpipe, cost me $60 to remove it for my old man.

[SirNemesis]

What is it size of the Primaries on the Genie manifolds?

I HIGHLY recomend you get the "x-pipe" cut out and replaced with straight pipes mate, sounds so so much better then the Xforce does standard.
I'm not a fan of the Xforce over all, but its serious 200% better without that xpipe, cost me $60 to remove it for my old man.

Cut out and replaced with a H-pipe, or cut out and left seperate?

[soop]

Six of one half a dozen to another.

The "H" is just a balance pipe doesn't actually do anything with the exhaust gasses. Dads just has straight pipes with no brace/balance in between. Wouldn't change the sound either way IMO.

I'll upload a pic of the POS Xforce pipe.

[rayvy]

how much you think a h-pipe would cost im already paying $850 just for the headers (im fine with that but the missus isnt lol) not to sure of the primarys size i will have to make a few phoe calls think the were 31/4 dont quote me on that tho lol, and what you think about the rear mufflers

[soop]

Primary pipe size means the pipes directly off the ports. So I doubt they're 3 1/4 inch . 1 1/4 would be more like it, but I doubt they're that small too.

It cost me $60 to modify my old mans exhaust system. Its about 30mins worth of work and about 4ft of pipe work. Very straight forward job.

Xforce "X pipe":


Inside:


Total dogs breakfast. Two mandrel bends cut in half and welded together. Nice way to cause a restriction. Dad says the car feels like its picked up a fair whack of torque in the bottom end purely from doing this. Have never run it on a Dyno, but he's not normally one to say something makes a difference, let alone a big difference.

[rayvy]

o and the exhaust shop im using (fast fit exhaust townsville) said i would get no benifit from opening up my cats as opposed to leaving them standard, im putting on hiflow's when i get the cam done just cant afford them because of xmas (getting 200cell, cant remember the brand tho)

[soop]

You'll get a small advantage if you replace the tiny little pipe work with a decent bit. Not a huge difference though!

[rayvy]

GENIE 323SS WILDCAT 083SS
5.7LTR & 6LTRV8 GEN3 GASKET PRIMARY 2ND PIPE OUTLET MANUAL AUTO AIR-CON P/STEER OXY FITTING
1999-ON TRI-Y SIZE SIZE FLANGE SENSOR TIME
DSF138 1 5/8 2 2 1/2 Y Y Y Y Y 3hrs


thats copied straight from there website

[rayvy]

hate copy paste sometimes so the primaries are 1 5/8

[rayvy]

o lol gotta fix that i got a vt ss s2 now haha thanks for pointing that out

[soop]

So it has 1 5/8 primary's.
That will be fine mate. Bout the same as any other brand.
Can't comment on design or quality how ever. But for $900 no doubt they'll be up there.

Some have 1 3/4 and 1 7/8. But they're normally aimed at highly modified and supercharged engines.

[rayvy]

sweet well ill post a link of it when i have them on (getting the x pipe removed as well thanks for the heads up) next thing will be diff gears b4 i get the cam done

[rayvy]

o 1 more thing whats your opinion on removing the rear mufflers?

[soop]

I haven't got one on my Pacemaker system, and its the same volume as my dads Xforce system WITH the rear muffler.

So yeah...

[rayvy]

so basically dont remove it with the xforce system cause its already loud enough lol

[soop]

Hahaha, IMO anyway.

[Vt_vic]

850 for genie try'y is very expensive difilippos are only 900 i had the pacemaker 1 5/8 try'y i bought for 200 used but ditched them for the difilippo 1 3/4 4-1's which imo are miles better

[soop]

Need to see them side by side to make that sort of comment.

[rayvy]

im not really after that much sound wise just want to make sure they will be right for the cam im getting i a few months, are they gonna be restrictive if i get them, idc much for 2-3kw dif between headers as long as they will prove good for future mods